CN1798912A - Propulsion system and method for optimising power supply to the cooling system thereof - Google Patents
Propulsion system and method for optimising power supply to the cooling system thereof Download PDFInfo
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- CN1798912A CN1798912A CNA2004800154964A CN200480015496A CN1798912A CN 1798912 A CN1798912 A CN 1798912A CN A2004800154964 A CNA2004800154964 A CN A2004800154964A CN 200480015496 A CN200480015496 A CN 200480015496A CN 1798912 A CN1798912 A CN 1798912A
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- Prior art keywords
- cooling
- parameter
- clutch
- ventilator
- driving machine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
- F01P7/042—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using fluid couplings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D33/00—Rotary fluid couplings or clutches of the hydrokinetic type
- F16D33/06—Rotary fluid couplings or clutches of the hydrokinetic type controlled by changing the amount of liquid in the working circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D33/00—Rotary fluid couplings or clutches of the hydrokinetic type
- F16D33/06—Rotary fluid couplings or clutches of the hydrokinetic type controlled by changing the amount of liquid in the working circuit
- F16D33/08—Rotary fluid couplings or clutches of the hydrokinetic type controlled by changing the amount of liquid in the working circuit by devices incorporated in the fluid coupling, with or without remote control
- F16D33/10—Rotary fluid couplings or clutches of the hydrokinetic type controlled by changing the amount of liquid in the working circuit by devices incorporated in the fluid coupling, with or without remote control consisting of controllable supply and discharge openings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Motor Or Generator Cooling System (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- General Details Of Gearings (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Abstract
The invention relates to a propulsion system comprising an engine and a cooling system for said engine. Said system consists of a coolant circuit, a cooling device and a fan which is associated therewith and actuated by the engine. The inventive cooling system is characterised in that a controlled clutch is arranged between the engine and fan. Said clutch is embodied in the form of an hydrodynamic clutch comprising a primary wheel and a secondary wheel which jointly form a working space fillable with a working fluid, and is provided with a fluid supply system associated with the clutch and with means influencing the transmission behaviour thereof.
Description
The present invention relates to have the drive unit of claim 1 preamble feature; And the method supplied with of the energy that also relates to the cooling system of at least one unit that is used to optimize drive unit.
For static or mobile application, comprise at least one driving machine, be made to an internal-combustion engine usually being used for moving this driving machine of occasion of using in particular for the drive unit in the Motor Vehicle.Need a cooling system in order to discharge this drive unit of heat that in combustion process, produces.This cooling system generally includes a cooling medium circulation loop that is used for guided; A cooling unit, it is made to heat exchanger usually; And a feedway, be used for the circulation of cooling medium circulation loop cooling medium, be generally a cooling medium recycle pump.In order realizing the optimal heat of surrounding environment to be shifted and the transmission of surrounding atmosphere in addition, cooling unit have been disposed the device of a ventilator or blower form.This ventilator is by driving machine, especially internal combustion engine drive in known embodiment.In the case, the air quantity that can flow to cooling unit thus is proportional to engine speed.A major defect of this system is that the response time reaches the available cooling power requirement of adaptive reality sufficiently slowly.If excessive air quantity is provided, promptly when the high rotating speed of driving machine, consume too much unnecessary energy with driving for ventilator thus, these energy are unwanted for required cooling power is provided fully.If air quantity is too small, motor will be reduced its power.Disclose some schemes in addition, wherein ventilator can be turned off or the different speed change level of ventilator drive unit conversion relatively.The feature of this system also is that the cooling power that can be provided by the cooling system requirement of adaptive reality sufficiently is provided the response time slowly, and this actual demand power is drive train, is that driving machine causes at least.
Other system is characterised in that, has used the device that influences ventilator power between driving machine and ventilator.Can consider the clutch system of machinery, wherein there is direct proportionate relationship in this system between the temperature in connection or compaction pressure and cooling system according to the temperature closure of cooling medium, and this is regarded as the major defect of this system.Therefore operation equipment, especially regulate and accurately design aspect the temperature that parameter must occur in cooling circuit.The cooling system of the current temperature value of this system responses, so that one side in addition can not provide cooling capacity possible on the complete Theory to reach on the other hand because this adjustment of inertia of system is carried out delay in time.
Therefore task of the present invention is, a kind of cooling system of optimizing aspect required energy requirement is provided, wherein the structure of cooling system and for this reason the characteristics of required measure should be on the structure and control technique on cost low.Wherein will consider: eliminate by the system inertia of scheme commonly known in the art and can change responding fast as far as possible the cooling power requirement of current appearance.
Characteristics according to the solution of the present invention are features of claim 1.Some favourable configurations have been provided in the dependent claims.
Have a driving machine, the especially drive unit of the driving machine of internal-combustion engine form and comprise a cooling system that is used for cooling off at least driving machine, this cooling system comprises: a cooling medium circulation loop that is used for guided; And one provide the cold environment air to absorb the ventilator of cooling medium circulation loop heat or the device of blower form, and this ventilator forms driving with driving machine and is connected; Reach a configuration and give the cooling unit of cooling medium circulation loop.This cooling system also comprises a cooling medium recycle pump, is used for keeping the flow circuit of cooling medium circulation loop.According to the present invention, between driving machine and ventilator, be provided with the may command or the can regulate clutch of a hydrokinetic type clutch form.This clutch is connected the back of this pump when the cooling medium recycle pump is driven by driving machine.This hydrokinetic type clutch comprises an elementary impeller and a secondary impeller, and they constitute the working room that can inject working medium each other, and wherein this clutch does not have guide wheel.Here elementary wheel speed at least indirectly, promptly directly or by other transmission part be connected with driving machine, and inferior step cone at least indirectly, promptly preferably directly or by other transmission part with ventilator, especially the ventilator live axle is connected.Being controlled at this and carrying out conduct of drive characteristic by the hydrokinetic type clutch:
-can be by the control and/or the adjusting of hydrokinetic type clutch power absorbed;
-can be by the control and/or the adjusting of the torque of hydrokinetic type clutch transmits;
The control of the rotating speed of-inferior step cone and/or adjusting.
Here use the Duty cycle of hydrokinetic type clutch or the adjusting parameter that parameter that characterizes or influence this Duty cycle at least indirectly is used as being used for all these controls and/or the task of adjusting.
The configuration according to the present invention of drive unit provides an advantage, i.e. adjustable by making the autonomous realization ventilator of driving machine power to change or influence by the transferable torque of clutch.To the reaction of driving machine be provide according to driving machine and realize by the power of clutch transmits, but wherein change the rotating speed of slave end, i.e. the rotating speed of ventilator live axle and also according to the rotating speed of this rotating speed adaptive driving machine under the situation of the clutch slip of considering to cause by work based on the adjustable of transmitting torque.
There is multiple possibility aspect the enforcement of the structure of drive unit.When as hydrokinetic type clutch configuration it can:
A) be provided with an independent working medium supply system, or
B) use the cooling system of driving machine as the working medium supply system.
In order to use existing parts to realize compact structure as far as possible as far as possible, preferably select according to b) possibility.In the case, the hydrokinetic type clutch is connected with the bent axle and the ventilator formation driving of driving machine, promptly is between motor and the ventilator.Configuration in cooling system is connected the back of recycle pump from the cooling medium flow direction, and wherein input of the fluid of hydrokinetic type clutch or circulation are controlled or regulated by a control valve unit.
This control valve unit can be implemented with multiple mode.It relates to a kind of adjustable control valve unit, and wherein controllability will have level or preferably infinitely realize.According to a particularly advantageous configuration, for the sensitivity of required Duty cycle is regulated at least one Proportional valve of use.
In the embodiment who is provided with independent working medium supply system, the circulation loop of configurable open type of convection cell driving type clutch or closed type.The control of Duty cycle or adjusting can realize by pressure control usually, preferably realize by apply a static stack pressure in circulation loop under the situation of closed type circulation loop.The adjustment of Duty cycle for example realizes by corresponding may command or adjustable supply pump in the open cycle loop.
According to the present invention proposes the method that a kind of cooling power that is used to optimize a cooling system is supplied with, this cooling system is used to cool off at least one drive train of a drive unit, this drive unit comprises that at least one driving machine and configuration give its cooling system, cooling system comprises that a cooling medium circulation loop that is used for carrying cooling medium and cooling unit that cools off cooling medium at least indirectly and configuration give the device of the ventilator form of the heat that the ambient air that is used to provide cold of cooling medium circulation loop or cooling unit absorbs cooling medium circulation loop or cooling unit, and this ventilator forms nothing with driving machine and is connected in relative rotation; Wherein the parameter that characterizes the temperature of the cooling medium in the cooling circuit at least indirectly according to the work at present parameter of driving machine and travelling state and at least one is adjusted as the air quantity that is used to the absorb heat parameter of the required cooling power that is used for providing cooling system, that can be provided by ventilator.Here ventilator with directly do not have coupling in relative rotation or with to have the fixing coupling that promptly has constant gear ratio in all working state of driving machine irrelevant.In the case before actual cooling power changes or side by side carry out the adaptive of required ventilator power.
By the current running parameter of driving machine, a parameter and a travelling state that characterizes the temperature in the cooling circuit is at least indirectly tried to achieve the variation characteristic that occurs in theory, the variation of cooling power in the cooling circuit that obtains especially thus.To derive by this theoretic variation and to be used to the cooling power or the required ventilator power of cooling power scope that keep certain.
The method according to this invention can make energy requirement adaptive best present case, the desired cooling medium power of cooling medium circulation loop when present case may change of ventilator.The air quantity that provides by ventilator and thus ventilator power and working state, especially do not exist fixing relation to reach thus between the two yet low-disturbance between the driving machine rotating speed.In addition, " idle running " that characterizes the ventilator that the air quantity that absorbs heat too is provided can be avoided, and this undue air quantity is unnecessary for required cooling power is provided.
Here by realizing by influence that ventilator is exported to the ventilator rotating speed for the adjusting that desired cooling power required air quantity is provided, because the air quantity that provides is provided this rotating speed basically, because almost can ignore, and when driving, produce substantially the same torque thus by the resistance that the ventilator rotation causes.Because the cooling power in cooling system, especially the cooling medium circulation loop and ventilator provide is used for by the cooling medium circulation loop or directly to absorb the air quantity of heat by cooling unit relevant, so the cooling power of cooling system is a function of the rotating speed of ventilator.In the case, other parameter is determined by the cooling power that is provided by cooling unit.Constitute at cooling unit under the situation of heat exchanger, this for example with in cooling unit, absorb the medium of heat or the type and the structurally associated of parts.
Play the temperature that has driving machine at least of running parameter effect and/or rotating speed and/or at least one indirect parameter that characterizes it of driving machine in the case.In this respect, " sign at least indirectly " means at corresponding temperature or rotating speed parameter and has a function relation between their parameter of sign indirectly.This function can differently design.Here can be regarded as characterizing the parameter of working state or travelling state at least with described parameter of the next one or their combination:
-one parameter that characterizes the current working state of driving machine at least indirectly;
-influence the starting of the unit of travelling state,
-be used to adjust and/or change travelling state or change the position and the operation of the preselected device of parameter driver desired amount that characterizes it;
-when the cooling system that utilizes driving machine cools off other unit in the power train, the work of these units and intensity thereof and for the required cooling power of these units.
According to the present invention, be connected with driving between the driving machine and control by the ventilator rotating speed or regulate the adjusting that realizes required cooling power by ventilator, be provided with the device that is used to control drive characteristic therein.Here this device is made of a may command or can regulate clutch.But this clutch-decide-make corresponding adjustment that can be by power consumpiton or influence the revolution of ventilator by the parameter of transmitting torque on form of implementation.
According to the present invention, as the rotating speed that is used to be defined as cooling off the controllable parameters system of the air quantity that provides and regulates ventilator.Here during control or the adjustment method of can be used as of regulating form are combined in the temperature controlling of the cooling power of cooling system for example or driving machine or similar device and/or regulate.In the case, this method is the higher level's control controlling or regulate and/or the constituent element of regulating section.
Formation according to the working medium supply system can be used oil, and water or cooling medium are as the working medium of clutch.
The drive unit that constitutes according to the present invention is realized method of the present invention according to claim in the best way based on the sexual compatibility of freely adjusting of torque that can be by clutch transmits.
Below will describe according to the solution of the present invention by accompanying drawing.Expression as follows respectively in the accompanying drawing:
Fig. 1: the basic structure of the basic principle of the drive unit of summary optimization method that represent according to the present invention to constitute, that be used to realize that cooling power is supplied with very simplifiedly;
Fig. 2: summary is represented a particularly advantageous configuration of the drive unit of formation according to the present invention simplifiedly, have the may command or the can regulate clutch that constitute as the hydrokinetic type clutch, the cooling system that makes full use of driving machine is as the working medium supply system;
Fig. 3 a and 3b: with for the diagrammatic sketch of simplifying according to the enforcement structural outline of Fig. 2 and by the control and the adjusting of a block representation ventilator rotating speed;
Fig. 4: by thermoregulator possibility according to the block representation driving machine of Fig. 3 b;
Fig. 5 a and 5b: representing with the summary diagrammatic sketch of simplifying very much can be by other two possibility of the power of ventilator output by clutch and independent working medium supply system control;
Fig. 6: expression is according to the improvement with an additional cooling medium recycle pump of Fig. 2.
Fig. 1 by the part of drive unit 1 very simply summary represent the embodiment's that constitutes according to the present invention basic structure.Drive unit A1 comprises a driving machine 2, and it can at random be implemented, and preferably constitutes internal-combustion engine 3.Driving machine 2 has been disposed a cooling system 4.This cooling system comprises: however a cooling medium circulation loop 5 that is used to conduct or carry at least a freezing mixture of multiple freezing mixture reaches the cooling unit 6 that cooling medium circulation loop 5 is given in a configuration.In addition, be provided with a ventilator 7, it provides the ambient air of cooling to cooling unit 6, and this ambient air will receive by the cooling medium in cooling unit 6 zones and export to its heat.Here cooling unit 6 is set in the cooling medium circulation loop 5.Exist multiple possibility for this structure.This cooling unit for example can be used as heat exchanger and constitutes.Ventilator 7 forms to drive with driving machine 2 and is connected.The cooling power of cooling system 4 and the adjusting at least indirectly of temperature of the freezing mixture in the cooling medium circulation loop 5 thus, preferably controlling and/or regulate will be 7 available by ventilator, be used to receive the control of freezing mixture cold environment air quantity of exportable heat behind the cooling unit and/or regulate and realize.This will be by the rotation speed n of ventilator 7
L ü fterOr a parameter control and/or an adjusting that characterizes it is at least indirectly carried out.According to the present invention in order to control and/or regulate the rotation speed n of ventilator 7
L ü fter, in the driving with driving machine 2 is connected, be provided with the clutch 37 of the form of a may command or adjustable fluid driving type clutch 8.This clutch is used to control can be by the power of its transmission.By keeping driving machine that the rotation speed n of under the situation of identical power the control of may command or the 37 transferable torques of adjustable clutch being come corresponding adjusting may command or adjustable clutch 37 output terminals is provided
AThis rotating speed corresponding to or at least directly be proportional to the rotation speed n of ventilator 7
L ü fterIn order to realize that each control and/or adjusting task are provided with control corresponding and/or controlling device 26.This device comprises at least one control and/or regulon 27, for it can be regarded as the parts of bearing the controller function that disperse to be provided with totally also or this controller.This control and/or regulon 27 are connected with the regulating device 38 of the transmission characteristics of adjustment or change clutch 37.The adjustment of the transmission characteristics of clutch 37 or change are carried out according to the parameter of the following stated in the case:
-unit to be cooled, the especially temperature of internal-combustion engine 3,
At least one running parameter of-driving machine or one is the parameter of its characteristic of secondary indication at least,
-at least one characterizes the parameter of the functional status of drive unit at least indirectly, uses moving
Use under the situation of drive unit at least one parameter of intermediate description travelling state at least.
Here, be interpreted as the parameter that characterizes its working method at least indirectly for the running parameter of driving machine, that is, perhaps parameter of directly describing or the parameter that can derive by functional relationship by other parameter.Belong to for example mainly containing of these parameters: the rotation speed n of driving machine 2
Mot, exportable power P
Mot, the output torque M
MotDeng.For example they can be determined by damper position or fuel injection quantity under the situation of internal-combustion engine constituting.
Here, can be regarded as the parameter that the energy balance to drive unit works for the parameter that characterizes travelling state at least indirectly.To this, not only can list in currently a parameter that constantly occurs on the t but also can be parameter at a variation, wherein should consider the former at least.What belong to these parameters for example has: characterize the parameter of the working method of a braking device, the power of driving machine output on moment t, the current retaining level of inserting etc.Belong to for example having: operation of braking means at the parameter of Motor Vehicle change of state, especially produce predetermined amount parameter, driver's expectation of determining retarding torque, according to the predetermined amount that keeps constant speed driver expectation, the predetermined amounts that the variation driver who exports according to driving machine power expects etc., wherein these can occur individually or in combination.Be provided with the relevant detection device in order to detect each parameter.Be used at least one at least one of intermediate description driving machine 2 detection device that drives the parameter of B parameter P represent with label 39, be used to detect at least one at least the detection device of the parameter of intermediate description travelling state FZ represent with label 40, and be used to detect at least the detection device of the parameter of the temperature of intermediate description driving machine 2 and represent with label 41.Each detection device 39 to 41 or be connected with control gear 27 serially or concurrently.According to the desired cooling power requirement that can derive by these parameters, according to the current running parameter of driving machine 2 by may command and/or can regulate clutch 37, especially by configuration give the adjustment of the regulating device of this clutch, by regulating especially rotation speed n
L ü fterControl adjust the power of ventilator 7.
Here rotation speed n
L ü fterAdjustment for example by with the realization of getting off:
The control of-Duty cycle FG and/or flow and or regulate, or
-one stroke or for example be used for is operated the control and/or the adjusting of the pressure of the pressure of executive component or the static state stack pressure form that can be applied to existing working medium container.
According to the present invention, what play a decisive role is: before real the adjustment, in that the stage is tried to achieve the cooling power requirement of a generation in advance.This system is in that the stage responds in advance thus.
Fig. 2 by the part of drive unit among Fig. 11 very simply summary represent to be used to implement the basic structure of a particularly advantageous configuration of the present invention of the method according to this invention.Wherein identical parts use identical label.Drive unit 1 comprises a driving machine 2, and it is preferably implemented with the form of internal-combustion engine 3.Driving machine 2, especially internal-combustion engine 3 have been disposed a cooling system 4.This cooling system comprises: a cooling medium circulation loop 5 that is used to conduct or carry freezing mixture reaches the cooling unit 6 that cooling medium circulation loop 5 is given in a configuration.In addition, be provided with a ventilator 7, it provides cold ambient air to cooling unit 6, and this ambient air absorbs heat.Ventilator 7 nothing at least indirectly is connected with driving machine 2, especially internal-combustion engine 3 with relatively rotating.This means that ventilator 7 and driving machine 2 or internal-combustion engine 3 form to drive and be connected, that is, does not perhaps have relatively rotate or be connected with this driving machine by centre connection transmission part.According to the present invention for the power of controlling and/or regulate ventilator 7-it especially characterizes as the function of rotating speed, or the preferably directly control and/or the rotation speed n of regulating ventilator 7
L ü fterIn being connected, the driving with driving machine 2 or internal-combustion engine 3 is provided with a hydrokinetic type clutch 8 as can regulate clutch 37.Here, this hydrokinetic type clutch 8 sees that on the power direction of transfer back that is connected driving machine 2 or internal-combustion engine 3 reaches the front at ventilator 7.The rotation speed n of ventilator 7
L ü fterAdjustment promptly at least the change of the Duty cycle FG of its control by hydrokinetic type clutch 8 realize.Therefore, hydrokinetic type clutch 8 relates to the hydrokinetic type clutch of control flow rate, relates to the hydrokinetic type clutch of regulating flow according to a particularly advantageous embodiment.Hydrokinetic type clutch 8 has comprised first step cone 9 and inferior step cone 10 that plays the turbine effect of pump impeller effect, and they constitute a working room 11 each other, are injected into working medium in this chamber.Here just step cone 9 at least can be indirectly, promptly directly or by another transmission device be connected with the bent axle 12 of internal-combustion engine 3.Inferior step cone 10 can be at least indirectly, promptly directly or by another transmission device be connected with ventilator 7, especially ventilator live axle 13.There is multiple possibility aspect the convection cell driving type clutch 8 supply working mediums.According to a particularly advantageous configuration corresponding to Fig. 2, hydrokinetic type clutch 8 is supplied to the working medium of the cooling system 4 of driving machine 2.The some parts of cooling system 4 or this system constitutes or disposes the constituent element of the working medium supply system 34 of giving hydrokinetic type clutch 8.For cooling medium circulates, be provided with a cooling medium recycle pump 14 here in cooling medium circulation loop 5.This pump is used for keeping the circulation of fluid and best and driving machine 2 couplings of cooling medium circulation loop 5.In an example shown, carry out configuration between driving machine 2 and the hydrokinetic type clutch 8.Therefore the rotating speed of live axle always interrelates with the rotating speed of driving machine 2, the especially rotating speed of bent axle 2.When supplying with hydrokinetic type clutch 8 as working medium with the cooling medium of cooling medium circulation loop 5, hydrokinetic type clutch 8 relative cooling medium circulation loops 5 are set in the bypass 15.In the case, cooling medium circulation loop 5 is formed in the outlet 18 of cooling medium recycle pump 14 and one first cooling medium transport portion 16 between the inlet 17.The second cooling medium transport portion 19 is made to bypass 15 and is used for the supply of the working medium of hydrokinetic type clutch 8.Bypass 15 comprises at least one the first bypass segment conduit 20 and the second bypass segment conduit 22.The first bypass segment conduit 20 makes the outlet 18 of cooling medium recycle pump 14 be connected with the inlet 21 of hydrokinetic type clutch 8, and wherein directly or indirectly other conduit or passage are connected with the working room 11 of hydrokinetic type clutch 8 this inlet 21 by some.The second bypass segment conduit 22 is connected at least one outlet 23 of hydrokinetic type clutch 8 with the input pipe 17 of cooling medium recycle pump 14.Here for example realize this outlet 23 or a plurality of such outlet and the coupling of working room 11 by tap hole.In order to adjust Duty cycle FG, between the inlet 21 of cooling medium recycle pump 14 and hydrokinetic type clutch 8, be provided with a control valve unit 24 here, the flow that passes through of this control valve unit at least can be controlled.Here control valve unit 24 is configured adjustable control valve unit, preferably the form of a Proportional valve 25.The working room 11 of hydrokinetic type clutch 8 is supplied to the working medium from the cooling medium form of the cooling medium circulation loop 5 of driving machine 2; Clutch 8 is coupling in the outlet 18 and the cooling medium circulation loop 5 between the inlet 17 of cooling medium recycle pump 14 by bypass 15; Reach a controlled control valve unit 24 is set on the circulating direction between cooling medium recycle pump 14 and the hydrokinetic type clutch 8; More than these will allow with simple methods control by the control of control valve unit 24 or-under the situation of a corresponding signal of feedback-regulate the flow that flows through hydrokinetic type clutch 8, and adjust based on the change of Duty cycle thus and-rotating speed of the ventilator 7 that is coupled according to the rotating speed of a particularly advantageous embodiment-regulate time step cone 10 or with inferior step cone 10 of hydrokinetic type clutch 8.Here, the feature of this system is that cost on the structural and control technique of adding is little and can optimize aspect the required optional feature.This scheme that is used for the working medium supply system 34 of hydrokinetic type clutch 8 is based on the cooling system 4 that exists anyway in addition, and especially the cooling medium circulation loop 5.Here cooling medium circulation loop 5 circulation loop that can be used as open type or closed type itself is implemented.Do not have constraint in this respect, cooling medium circulation loop 5 is configured the circulation loop of closed type in favourable configuration shown in Figure 2.
There is such possibility by the solution of the present invention, promptly basically by its rotation speed n
L ü fterThe cooling power of ventilator 7 that determine and that can influence by its thus can with the rotation speed n of driving machine 2
MotIrrespectively be adjusted.According to the present invention, the rotation speed n of ventilator 7 here
L ü fterAdjustment carry out according to the running parameter of drive unit 1, can keep the temperature in the cooling system 4 thus, and driving machine, especially internal-combustion engine 3 are adjusted back or lofty tone, its mode is, in cooling medium circulation loop 5 because the temperature of the change freezing mixture of running parameter can be by adaptive by the cooling power of ventilator 7 outputs before rising or descending.This provides an advantage, and promptly the temperature of internal-combustion engine 3 keeps constant basically on the one hand, and the energy requirement that is used in addition cool off can be optimised.Here the running parameter as drive unit 1 can be regarded as parts or unit, the especially temperature for the treatment of by 5 coolings of cooling medium circulation loop of driving machine 2, and may can be regarded as the parameter that its temperature reaches the working state that characterizes driving machine 2 and Motor Vehicle at least indirectly under the situation that is provided with the retarder that is not shown specifically here.Belong to mainly containing of this tittle: the possible operation of a retarder characterizes the eigenvalue that driving machine power is exported, for example rotation speed n
Mot, torque M
Mot, the retaining level of inserting during with the gearbox unit coupling when driving machine 2 and at slave end, the especially characteristic quantity that occurs of speed changer output terminal, for example n
Abtrieb, M
AbtriebIn Fig. 3 a, provided the rotation speed n of ventilator 7
L ü fterThe control possibility.Therefore the basic structure of drive unit 1 use identical label for identical parts corresponding to the drive unit described in Fig. 2.Here this drive unit has been disposed a control gear 26, it comprises a control unit 27, and it preferably is made to controller, especially ECU.It comprises at least one input end 28, in institute's example be a plurality of input end 28.1 to 28.n, and at least one output terminal 29, the latter is connected with the regulating device 30 of control valve unit 24.These input ends 28.1 to 28.n that are used for this input end 28 of Serial Data Transfer Mode or are used for parallel data transmission are connected with the device 31.1 to 31.n of the running parameter that is used to detect drive unit 1 respectively, especially with the device 39 that is used to detect the parameter of the temperature of intermediate description unit to be cooled at least, be used to detect at least one at least the device 40 and being used to of the parameter of the working state of intermediate description driving machine 2 device 41 that detects at least one parameter that characterizes travelling state at least indirectly be connected.Here in institute's example, for example install 31.1 and for example relate to and be used to detect a rotation speed n that characterizes driving machine 2 at least indirectly
MotThe device 40 of parameter, device 31.2 relates to and is used for the device 39 that a detection characterizes parameters temperature, cooling medium circulation loop 5 temperature forms of driving machine at least indirectly, and device 31.3 relates to and is used to detect a device 41 that characterizes the parameter of travelling state at least indirectly.Here install 31.2 and preferably be configured thermostat 32, it is set in the cooling circuit and is preferably disposed in the inlet 33 of cooling unit 6.Here, according to the rotation speed n of current driving machine of trying to achieve
MotAnd current travelling state and current temperature T deducibility of trying to achieve in cooling medium circulation loop 5 change of the required cooling power of cooling medium circulation loop 5, especially the rising or the reduction of the temperature in the cooling medium circulation loop 5 that may obtain based on present case.The coolant temperature change Delta T that can try to achieve according to this, preferably can calculate is carried out the control of convection cell driving type clutch 8 then, particularly by control valve unit 24, especially the control of its regulating device 30 comes predetermined in order to reach the required ventilator 7 available power Duty cycle FG to be produced that passes through, so that the cooling power in the cooling medium circulation loop 5 to be provided.In the case, control valve unit 24 plays the effect of the regulating device 38 of the Duty cycle FG that is used for adjusting working room 11.Under keeping the situation of temperature of driving machine 2, expectation needs to derive temperature T in the cooling medium circulation loop 5
K ü hlmittelThe change Delta T that obtains by running parameter
K ü hlmittel-theoretischBe configured for controlling the adjusting parameter of ventilator 7 by the variation of this generation, so that make the cooling water in the cooling medium circulation loop 5 certainly hold constant.Try to achieve for this reason and be used to export required cooling power P
L ü fterSetting value, it is proportional to rotation speed n
Soll-L ü fterIn order to control the temperature T of cooling medium in the cooling medium circulation loop 5
K ü hlmittel, control the rotation speed n of ventilator 7 here
L ü fterAs control ventilator rotation speed n
L ü fter-it corresponding to the output terminal of hydrokinetic type clutch 8, be the rotation speed n on the turbine 10
KupplungOr with this rotating speed function relation is arranged, preferably directly be direct ratio-the adjusting parameter, use the Duty cycle FG of hydrokinetic type clutch 8 here, this Duty cycle is adjusted by control valve unit 24 again.Here this Duty cycle FG description can be by clutch 8 torque transmitted M
Kupplung, this torque is according to the rotation speed n of driving machine 2
MotDetermining can be by the power P of clutch 8 transmission
KupplungIn Fig. 3 b, express corresponding block diagram.
Fig. 4 passes through temperature T in the cooling medium circulation loop 5 by the block representation according to Fig. 3 b
K ü hlmittelAdjusting make the temperature T of driving machine
MotBe adjusted in the possibility on the constant temperature.Here the temperature T of cooling medium
K ü hlmittelConstitute at least indirection table and levy the driving machine temperature T
MotParameter.Actual value T will be monitored and be worked as to this temperature constantly
MotOr T
K ü hlmittelDepart from setting value T
Soll-motOr T
Soll-K ü hlmittelDuring a Δ T, then carry out the ventilator rotation speed n is preferably regulated in the control as the ventilator 7 of motor or the thermostatically controlled regulating device of cooling medium in the case
L ü fter, its mode is to try to achieve actual value n constantly or by the certain hour compartment of terrain
L ü fterReach and the setting value n to be produced that obtains by temperature departure
Soll-L ü fterCompare.Carry out the change of the Duty cycle FG of hydrokinetic type clutch 8 according to regulating departure, reach till 0 up to this deviate.The adjustment of Duty cycle FG then is that the control by control valve unit 24 realizes that this control valve unit is determined the flow in the bypass 15.The control of the rotating speed of ventilator 7 or be the control of coolant temperature or one parameter that characterizes this temperature at least indirectly and/or the constituent element of adjusting in the adjusting that this rotating speed under the situation of feedback is arranged.The adjusting of ventilator 7 rotating speeds in this embodiment is combined in the cooling medium thermostatic control.But can consider that also this rotational speed regulation is combined in the control according to Fig. 3 b.Also can be in addition, in order to regulate the control that coolant temperature only utilizes the ventilator rotating speed.
Fig. 5 a and 5b summary very simplifiedly represent to control ventilator 7.5 exportable cooling power P by the rotating speed control or the adjusting of ventilator 7.5
L ü fterOther two possibilities, its mode is that this is used hydrokinetic type clutch 8.5.But here this clutch has been disposed and cooling medium circulation loop 5.5 irrelevant working medium supply system 34.5 independently.Here the cooling medium circulation loop 5.5 of driving machine 2 is corresponding in conjunction with the described cooling medium circulation loop of Fig. 2, but irrespectively is provided with the hydrokinetic type clutch 8.5 that is arranged in wherein with bypass.In the case, will use identical label for identical parts.Here the working medium supply system 34.5 of hydrokinetic type clutch 8.5 can make with different modes.In institute's example, use an open cycle loop 35 here.This circulation loop comprises a working medium container 36, and it is connected with 21.5 and outlets 23.5 of at least one inlet of hydrokinetic type clutch 8.5 by corresponding conduit attachment portion.The feature of this system is a delivery port constant in hydrokinetic type clutch 8.5.Here the Duty cycle of hydrokinetic type clutch 8.5 changes along with the change of the fluid flow of input.This variation will be adjusted by coolant pump 37, and this pump is connected the back of working medium container 36 on the input direction of the working room 11 of convection cell driving type clutch 8.Though this system is structurally different with system described in Fig. 1, can carry out control and the adjustment process identical with this system.What play a decisive role is to use the hydrokinetic type clutch with variable duty that the power output of ventilator 7 is controlled.In contrast to this, represent to have the structure of the working medium supply system 34.5 of closed circulation loop 42 according to the embodiment of Fig. 5 b, this circulation loop to wiper seal be connected on the working medium container 36.5.Here be provided with the device 43 that is used on container working medium horizontal plane producing static stack pressure, but this device be configured for changing power transmit ratio, in particular for the regulating device 38 of device 44 forms of the change Duty cycle of the clutch 8.5 that changes transmitting torque.
Fig. 6 summary simplifiedly represents a improvement according to Fig. 2, wherein is provided with clutch 45 drivable second cooling medium recycle pumps 46 additional, that implement arbitrarily by may command or adjustable ground in the cooling medium circulation loop.This pump is also by for example speed/torque converter unit 47 and driving machine 2 couplings of cylindrical gears group 48 forms.This scheme has provided an advantage, i.e. the irrelevant freely property adjusted of the rotating speed of the quantity delivered of cooling medium recycle pump 46 and driving machine 2.
The reference number table
1,1.5 drive unit 9 is step cone just
No. 10 step cones of 2,2.5 driving machines
3,3.5 internal combustion engines, 11 operating rooms
4,4.5 cooling systems, 12 bent axles
5,5.5 cooling medium closed circuits, 13 ventilation blower driving shafts
6 cooling units, 14 cooling medium recycle pumps
15 bypasses of 7,7.5 ventilators
8,8.5 hydrokinetic type clutches 16 first are carried the cooling medium part
17 inlets
18 outlets
19 second carry the cooling medium part
20 first bypass segment conduits
21,21.5 inlets
22 second bypass segment conduits
23,23.5 outlets
24 control valve units
25 Proportional valves
26 control gear
27 control units
28.1 extremely
28.n input end
29 output terminals
The controlling device of 30 valves
31 to
31.n be used to detect the device of Operational Limits
31.1 be used to detect a rotation speed n that characterizes driving machine at least indirectly
MotThe device of parameter
31.2 be used for detecting a device that characterizes the parameter of cooling medium circulation loop 5 temperature at least indirectly
31.3 be used to detect a device that characterizes the parameter of travelling state at least indirectly
32 thermostats
33 inlets
The working medium supply system of 34,34.5 hydrokinetic type clutches
35 open circuits
36 working medium containers
The clutch of 37 may command and/or adjusting
38 controlling devices
39 are used to detect the device of the parameter of a running parameter BP who describes driving machine at least indirectly
40 are used to detect the device that at least one describes the parameter of travelling state FZ at least indirectly
41 are used to detect the device of the parameter of a temperature that characterizes driving machine at least indirectly
The loop of 42 closures
43 are used for applying at the working medium horizontal plane device of the stack pressure of a static state
44 are used to change the device of Duty cycle
45 adjustable clutches
46 second cooling medium recycle pumps
47 speed/torque converter units
48 cylindrical gears groups
49 are used to influence the device of the drive characteristic of hydrokinetic type clutch
n
MotThe rotating speed of driving machine
n
L ü fterThe rotating speed of ventilator
T
K ü hlmittelTemperature in the cooling medium circulation loop
T
Sdl-k ü hlmittelThe cooling medium setting value of coolant temperature
The adjusting deviation of Δ T coolant temperature
P
L ü nerThe cooling power of ventilator output
N
Soll-L ü fterThe setting value of ventilator rotating speed
n
Ist-L ü fferThe actual value of ventilator rotating speed
Claims (17)
1. drive unit (1; 1.5); Have: a driving machine (2,3; 2.5,3.5); One is used to cool off driving machine (2,3; 2.5,3.5) cooling system (4; 4.5), this cooling system comprises a cooling medium circulation loop (5; 5.5), the ventilator (7 of cooling unit is given in a cooling unit (6) and configuration; 7.5); This ventilator (7; 7.5) and driving machine (2,3; 2.5,3.5) and formation driving connection; It is characterized in that: at driving machine (2,3; 2.5,3.5) and ventilator (7; 7.5) between be provided with a may command or adjustable clutch (37); Clutch (37) is configured to hydrokinetic type clutch (8; 8.5), step cone and one step cone at the beginning of it comprises one, they constitute the working room (11) that can inject working medium each other; Be provided with a configuration and give the working medium supply system (34 of this clutch; 34.5); Be provided with and be used to influence hydrokinetic type clutch (8; 8.5) the device (49) of drive characteristic.
2. according to the drive unit (1 of claim 1; 1.5), it is characterized in that be provided with: control and/or controlling device for one, it comprises at least one control and/or regulon; With the detection device that this control and/or regulon are coupled, be used to detect following parameter: at least one work at present parameter of driving machine; At least one characterizes the parameter of the working state of drive unit at least indirectly; At least one characterizes the parameter of the temperature in the cooling circuit at least indirectly; This control and/or regulon are connected with the regulating device of clutch, to influence transferable torque.
3. according to the drive unit of claim 1 or 2, it is characterized in that: hydrokinetic type clutch (8; 8.5) working medium supply system (34; 34.5) by cooling system (4; 4.5) constitute; Clutch (8; 8.5) on flow direction, be connected and be arranged on cooling medium circulation loop (4; 4.5) in the back of recycle pump (14.5); Clutch (8; 8.5) be set at and lead to cooling medium circulation loop (4; 4.5) a bypass (15) in; And have one and be arranged on cooling system (4; 4.5) in control valve unit (24) as clutch (8; 8.5) regulating device, be used for the Control work medium to hydrokinetic type clutch (8; 8.5) the input of working room (11).
4. according to the drive unit of claim 3, it is characterized in that: control valve unit (24) is set at cooling medium circulation loop (4; 4.5) in.
5. according to the drive unit of claim 4, it is characterized in that: control valve unit (24) is set in the bypass (15).
6. according to one drive unit in the claim 3 to 5, it is characterized in that: control valve unit (24) is configured to Proportional valve (25).
7. according to one drive unit in the claim 3 to 6, it is characterized in that: have second recycle pump (46) that is arranged in the cooling circuit (4); Second recycle pump (46) is connected the front of first recycle pump (14); Second recycle pump (46) is connected with driving machine (2,3) by the speed/torque transfer unit (47) between driving machine (2,3) and clutch (8); Second recycle pump (46) can be adjusted.
8. according to the drive unit of claim 7, it is characterized in that: the adjustable of second recycle pump (46) realizes by may command and/or adjustable clutch (45) in the driving attachment portion that is arranged between driving machine (2,3) and second recycle pump (46).
9. drive unit according to Claim 8, it is characterized in that: may command and/or adjustable clutch (45) are configured to the hydrokinetic type clutch.
10. according to the drive unit (1 of claim 1 or 2; 1.5), it is characterized in that: have the independent working medium supply system (34 that clutch (8,8.5) is given in a configuration; 34.5); This working medium supply system (34; 34.5) comprise one with this working room (11) coupling circulation loop (42); Be provided with configuration and give the device (44) of Duty cycle that is used for changing working room (11) of this circulation loop (42).
11. drive unit (1 according to claim 10; 1.5), it is characterized in that: this circulation loop (42) is configured to closed type circulation loop (42), it to wiper seal the device (44) that is connected to the closed working medium container (36.5) in wiper seal ground and is used for changing Duty cycle comprise and be used for the static state pressure that superposes is applied to device (43) on the working medium horizontal plane of working medium container (36.5).
12. be used to optimize a cooling system (4; 4.5) the method supplied with of energy, this cooling system is used to cool off a drive unit (1; 1.5) at least one unit, this drive unit comprises a driving machine, wherein cooling system (4; 4.5) comprise that at least one has the ventilator (7 that cooling unit is given in cooling unit (6) and configuration; 7.5) cooling medium circulation loop (5; 5.5), this ventilator (7 wherein; 7.5) and driving machine (2,3; 2.5,3.5) and formation driving connection; Wherein cooling system (4; 4.5) cooling power by by ventilator (7; 7.5) being used to of providing the air quantity that absorbs heat control and/or regulate; Wherein by ventilator (7; 7.5) rotating speed control and/or regulate and to carry out by ventilator (7; 7.5) being used to of providing absorb the control and/or the adjusting of the air quantity of heat; It is characterized in that:
Wherein according to the parameter of the following stated and can try to achieve by them, cooling circuit (5; 5.5) in temperature variation carry out ventilator (7; 7.5) the control and/or the adjusting of rotating speed:
Driving machine (2,3; 2.5,3.5) at least one current running parameter;
At least one characterizes drive unit (1 at least indirectly; 1.5) the parameter of working state;
At least one characterizes cooling circuit (5 at least indirectly; 5.5) in the parameter of temperature;
Wherein play ventilator (7; 7.5) the control of rotating speed and/or the adjusting parameter role of adjusting be describedly to be connected driving machine (2,3 by one; 2.5,3.5) and ventilator (7; 7.5) between clutch (8; 8.5,37) and transferable torque or a parameter that characterizes this torque at least indirectly.
13. the method according to claim 12 is characterized in that: at drive unit (1; 1.5) mobile application in, the described drive unit (1 that characterizes at least indirectly; 1.5) the parameter of working state determine by the parameter that characterizes travelling state at least indirectly.
14. the method according to claim 13 is characterized in that: what play the described parameter effect that characterizes travelling state at least indirectly is at least one following parameter:
-one parameter that characterizes at least indirectly by the power of driving machine output;
-one characterizes the parameter that operation of braking means or are used to adjust the operation of the operation of preselected device of driver's expectation or an accelerator pedal at least indirectly.
15., it is characterized in that: calculate the temperature variation that in cooling circuit, produces according to one method in the claim 12 to 14.
16., it is characterized in that: estimate the temperature variation that produces in the temperature range in cooling circuit according to one method in the claim 12 to 14.
17. according to one method in the claim 12 to 16, it is characterized in that: the control of the rotating speed of ventilator and/or adjusting are the constituent elements of the adjusting of steady temperature in the cooling medium circulation loop.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10315402.7 | 2003-04-04 | ||
| DE10315402A DE10315402A1 (en) | 2003-04-04 | 2003-04-04 | Drive system and method for optimizing the energy supply for a cooling system of a drive system |
| PCT/EP2004/003273 WO2004088104A1 (en) | 2003-04-04 | 2004-03-27 | Propulsion system and method for optimising power supply to the cooling system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1798912A true CN1798912A (en) | 2006-07-05 |
| CN1798912B CN1798912B (en) | 2011-11-30 |
Family
ID=33103200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004800154964A Expired - Fee Related CN1798912B (en) | 2003-04-04 | 2004-03-27 | Propulsion system and method for optimising power supply to the cooling system thereof |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7341026B2 (en) |
| EP (1) | EP1611325B1 (en) |
| JP (1) | JP4586017B2 (en) |
| KR (1) | KR20060002900A (en) |
| CN (1) | CN1798912B (en) |
| AT (1) | ATE500407T1 (en) |
| DE (2) | DE10315402A1 (en) |
| RU (1) | RU2331779C2 (en) |
| WO (1) | WO2004088104A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102808683A (en) * | 2011-06-01 | 2012-12-05 | 约瑟夫福格勒公司 | Construction machine with automatic fan rotational speed regulation |
| CN103437879A (en) * | 2013-08-29 | 2013-12-11 | 南京依维柯汽车有限公司 | Efficient heat distribution and intelligent control method of motor truck |
| CN108463672A (en) * | 2015-11-09 | 2018-08-28 | 威乐欧洲股份公司 | Method for controlling centrifugal pump and relevant pumping system |
| CN108709351A (en) * | 2018-06-13 | 2018-10-26 | 张爱梅 | A kind of elevator winding displacement cooling device |
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| US7395788B2 (en) * | 2005-03-22 | 2008-07-08 | Atlas Copco Rock Drills Ab | Drill rig and a method for controlling a fan therein |
| DE102007056492B3 (en) * | 2007-11-22 | 2009-06-04 | Voith Patent Gmbh | Fan wheel for use in cooling system utilized for cooling engine of vehicle i.e. lorry, has hydrodynamic coupling comprising secondary wheel integrally formed with fan blades from same material |
| DE102007056493B3 (en) * | 2007-11-22 | 2009-06-04 | Voith Patent Gmbh | Fan wheel for cooling system utilized for cooling engine in vehicle i.e. motor vehicle such as lorry, has cooling channels guiding working medium from work space into closed loop to guide heat from work medium into blades |
| SE532025C2 (en) * | 2008-02-12 | 2009-10-06 | Scania Cv Abp | Device for operating a cooling fan |
| DE102009005504A1 (en) * | 2009-01-19 | 2010-07-22 | Voith Patent Gmbh | Vehicle cooling circuit with a retarder or a hydrodynamic coupling |
| SE533934C2 (en) | 2009-07-07 | 2011-03-08 | Scania Cv Ab | Device and method for improving the performance of a motor vehicle |
| DE102009037057A1 (en) * | 2009-08-13 | 2011-02-17 | Voith Patent Gmbh | Method for controlling the power transmission of a hydrodynamic retarder |
| DE102010022849B4 (en) * | 2010-06-07 | 2012-05-03 | Voith Patent Gmbh | Compression device and method for cooling a compression medium |
| WO2013029794A1 (en) * | 2011-09-03 | 2013-03-07 | Robert Bosch Gmbh | Apparatus and method for controlling a fan drive |
| PL2578888T3 (en) | 2011-10-07 | 2019-05-31 | Voegele Ag J | Construction machine with automatic ventilator rotation speed regulator |
| CN102588065A (en) * | 2012-02-29 | 2012-07-18 | 广州市科密汽车制动技术开发有限公司 | Thermal management system of engine |
| DE102013003754B4 (en) | 2013-03-06 | 2020-06-18 | Voith Patent Gmbh | Cooling system set up for cooling an internal combustion engine |
| JP6375599B2 (en) * | 2013-08-08 | 2018-08-22 | いすゞ自動車株式会社 | Engine cooling system |
| KR200491586Y1 (en) * | 2016-03-18 | 2020-05-04 | 알파 라발 코포레이트 에이비 | Systems and methods for variable speed cooling fans on skid mounted compressors |
| DE102016215739A1 (en) * | 2016-08-23 | 2018-03-01 | Voith Patent Gmbh | Hydrodynamic coupling |
| CN113140859B (en) * | 2021-04-17 | 2022-08-23 | 深圳市驰普科达科技有限公司 | Battery pack management device capable of reducing power loss in standby |
| WO2024004979A1 (en) * | 2022-06-29 | 2024-01-04 | 日立建機株式会社 | Transportation vehicle |
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- 2003-04-04 DE DE10315402A patent/DE10315402A1/en not_active Withdrawn
-
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- 2004-03-27 EP EP04723905A patent/EP1611325B1/en not_active Expired - Lifetime
- 2004-03-27 CN CN2004800154964A patent/CN1798912B/en not_active Expired - Fee Related
- 2004-03-27 DE DE502004012257T patent/DE502004012257D1/en not_active Expired - Lifetime
- 2004-03-27 KR KR1020057018551A patent/KR20060002900A/en not_active Application Discontinuation
- 2004-03-27 US US10/552,108 patent/US7341026B2/en not_active Expired - Fee Related
- 2004-03-27 AT AT04723905T patent/ATE500407T1/en active
- 2004-03-27 WO PCT/EP2004/003273 patent/WO2004088104A1/en active Application Filing
- 2004-03-27 RU RU2005134221/06A patent/RU2331779C2/en not_active IP Right Cessation
- 2004-03-27 JP JP2006504890A patent/JP4586017B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808683A (en) * | 2011-06-01 | 2012-12-05 | 约瑟夫福格勒公司 | Construction machine with automatic fan rotational speed regulation |
| CN102808683B (en) * | 2011-06-01 | 2016-03-02 | 约瑟夫福格勒公司 | There is the building machinery that automatic fan rotational speed regulates |
| CN103437879A (en) * | 2013-08-29 | 2013-12-11 | 南京依维柯汽车有限公司 | Efficient heat distribution and intelligent control method of motor truck |
| CN103437879B (en) * | 2013-08-29 | 2015-09-16 | 南京依维柯汽车有限公司 | Cargo vehicle High Efficiency Thermal distributes and intelligent control method |
| CN108463672A (en) * | 2015-11-09 | 2018-08-28 | 威乐欧洲股份公司 | Method for controlling centrifugal pump and relevant pumping system |
| CN108463672B (en) * | 2015-11-09 | 2021-03-02 | 威乐欧洲股份公司 | Method for controlling a centrifugal pump and associated pump system |
| CN108709351A (en) * | 2018-06-13 | 2018-10-26 | 张爱梅 | A kind of elevator winding displacement cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| US20070006826A1 (en) | 2007-01-11 |
| CN1798912B (en) | 2011-11-30 |
| DE502004012257D1 (en) | 2011-04-14 |
| EP1611325B1 (en) | 2011-03-02 |
| EP1611325A1 (en) | 2006-01-04 |
| KR20060002900A (en) | 2006-01-09 |
| JP4586017B2 (en) | 2010-11-24 |
| RU2331779C2 (en) | 2008-08-20 |
| WO2004088104A1 (en) | 2004-10-14 |
| RU2005134221A (en) | 2006-05-10 |
| US7341026B2 (en) | 2008-03-11 |
| JP2006522261A (en) | 2006-09-28 |
| ATE500407T1 (en) | 2011-03-15 |
| DE10315402A1 (en) | 2004-11-04 |
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